ampulla

1. A nearly round bottle with two handles used by the ancient Romans for wine, oil, or perfume.

2. Ecclesiastical A vessel for consecrated wine or holy oil.

3. Anatomy A small dilatation in a canal or duct, especially one in the semicircular canal of the ear.

am·pul′lar adj.

ampulla

[ampo̅o̅l′ə]pl. ampullae,

Etymology: L, flasklike bottle

a rounded, saclike dilation of a duct, canal, or any tubular structure, such as the lacrimal duct, semicircular canal, fallopian tube, rectum, or vas deferens.

ampulla

AnatomyA sac-like enlargement of a duct or tube.

PharmacologyAmpule, see there.

ampulla

A saclike enlargement of a duct or tube

1. Ampulla of Vater, formally, hepatopancreatic ampulla.

2. Ampule.

am·pul·la

, pl. ampullae (am-pul'ă, -ē) [TA]

A saccular dilation of a canal or duct.

[L. a two-handled bottle]

ampulla

A widened (dilated) segment of a gland or small tube.

ampulla

any small vesicle or sac-like offshoot, particularly the dilation at the end of the semicircular canal of the EAR, which houses sensory epithelium and is concerned with balance; See CRISTA AMPULLARIS. Other examples include the internal expansion of the echinoderm tube-foot, and the pit housing the medusoid stage in the calcareous skeleton of Hydrocorallina.

am·pul·la

, pl. ampullae (am-pul'ă, -ē) [TA]

A saccular dilation of a canal or duct.

[L. a two-handled bottle]

ampulla

pl. ampullae [L.] a flasklike dilatation of a tubular structure, especially of the expanded ends of the semicircular canals of the ear. See also ampullar.

ampulla chyli

cisterna chyli.

ampulla coli

the enormously dilated part of the right dorsal colon of the horse.

ampulla ductus deferentis

the enlarged glandular urethral end of the ductus deferens.

Henle's ampulla

ampulla ductus deferentis.

hepatopancreatic ampulla

ampulla of Vater; in humans, a flasklike cavity in the major duodenal papilla into which the common bile duct and pancreatic duct open.

Lieberkühn's ampulla

the blind termination of the lacteals in the villi of the intestines.

ampullae membranaceae

the dilatations at one end of each of the three semicircular ducts.

ampullae osseae

the dilatations at one of the ends of the semicircular canals.

phrenic ampulla

the dilatation at the diaphragmatic end of the esophagus in some species.

rectal ampulla

the dilated portion of the rectum just proximal to the anal canal, prominent in the horse.

ampulla of Thoma

one of the small terminal expansions of an interlobar artery in the pulp of the spleen.

uterine tube ampulla

the longest and widest portion of the uterine tube, between the infundibulum and the isthmus of the tube.

vas deferens ampulla

dilatation of the terminal part of the vas deferens caused by glandular thickening of the wall.

In addition to decorations on ampullae and other pilgrim "souvenirs," its architectural form was replicated both on a small scale - for example, the fragment of a stone model preserved in the Musee lapidaire at Narbonne - and also at something approaching full size.

Using anesthetized animals, Obara and Bennett (1972) recorded from the primary afferent neurons projecting from the receptor cells lining the ampullae of Lorenzini in two skate species, Raja oscellata and Raja erinacea.

The art of the early Christians shown in the exhibition is one primarily oriented around Rome and Italy: there is little sense of the simultaneous development of Christian art in the eastern Mediterranean, the images connected with the growing cults of ascetic saints in Syria and Egypt in the fourth and fifth centuries; or the various pilgrim tokens and ampullae that were produced to service pilgrims visiting the loca sancta of the Holy Land.

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